Statements of Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Interest income:
Advances	$ 95,201	$ 478,477	$ 548,953	$ 1,508,189
Interest-bearing deposits	638	9,347	6,005	31,437
Securities purchased under agreements to resell	294	10,168	7,923	25,871
Federal funds sold	1,000	48,954	27,454	126,551
Trading securities	9,055	18,309	41,786	41,317
Available-for-sale (AFS) securities	31,996	71,884	138,565	201,198
Held-to-maturity (HTM) securities	11,816	20,401	43,932	65,027
Mortgage loans held for portfolio	35,932	42,452	121,561	126,922
Total interest income	185,932	699,992	936,179	2,126,512
Interest expense:
Consolidated obligations - discount notes	16,980	167,435	175,414	497,369
Consolidated obligations - bonds	80,579	413,901	462,006	1,259,974
Deposits	26	2,922	1,827	8,929
Mandatorily redeemable capital stock and other borrowings	4,072	6,715	14,127	10,635
Total interest expense	101,657	590,973	653,374	1,776,907
Net interest income	84,275	109,019	282,805	349,605
Provision for credit losses	1,243	371	5,635	1,820
Net interest income after provision for credit losses	83,032	108,648	277,170	347,785
Other noninterest income (loss):
Net OTTI losses	0	(271)	0	(330)
Net gains (losses) on investment securities (Note 2)	(5,323)	5,441	53,868	23,355
Net gains (losses) on derivatives and hedging activities (Note 5)	3,589	(17,397)	(97,685)	(55,201)
Standby letters of credit fees	5,407	5,274	16,019	16,310
Other, net	1,405	322	1,688	1,875
Total other noninterest income (loss)	5,078	(6,631)	(26,110)	(13,991)
Other Expense
Compensation and benefits	12,844	11,129	39,190	36,909
Other operating	7,871	8,657	29,869	24,151
Finance Agency	1,894	1,589	5,688	4,775
Office of Finance	1,243	1,812	3,995	4,581
Total other expense	23,852	23,187	78,742	70,416
Income before assessments	64,258	78,830	172,318	263,378
Affordable Housing Program (AHP) assessment	6,833	8,554	18,644	27,400
Net Income	$ 57,425	$ 70,276	$ 153,674	$ 235,978